diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-14 12:33:31 +0100 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-14 12:33:31 +0100 |
commit | bb22dc14a2c29f6efef40ee72344c5d283a92987 (patch) | |
tree | 90938fc65a1c67ce3afbf3ccae7f10250a696332 /arch/x86/include/asm/spec-ctrl.h | |
parent | fca91f6d60b6ee53b8d43c8ad5bad153a758961c (diff) | |
parent | 211929fd3f7c8de4d541b1cc243b82830e5ea1e8 (diff) |
Merge branch 'khdr_fix' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest into HEAD
Merge topic branch from Shuah.
Diffstat (limited to 'arch/x86/include/asm/spec-ctrl.h')
-rw-r--r-- | arch/x86/include/asm/spec-ctrl.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/arch/x86/include/asm/spec-ctrl.h b/arch/x86/include/asm/spec-ctrl.h index ae7c2c5cd7f0..5393babc0598 100644 --- a/arch/x86/include/asm/spec-ctrl.h +++ b/arch/x86/include/asm/spec-ctrl.h @@ -53,12 +53,24 @@ static inline u64 ssbd_tif_to_spec_ctrl(u64 tifn) return (tifn & _TIF_SSBD) >> (TIF_SSBD - SPEC_CTRL_SSBD_SHIFT); } +static inline u64 stibp_tif_to_spec_ctrl(u64 tifn) +{ + BUILD_BUG_ON(TIF_SPEC_IB < SPEC_CTRL_STIBP_SHIFT); + return (tifn & _TIF_SPEC_IB) >> (TIF_SPEC_IB - SPEC_CTRL_STIBP_SHIFT); +} + static inline unsigned long ssbd_spec_ctrl_to_tif(u64 spec_ctrl) { BUILD_BUG_ON(TIF_SSBD < SPEC_CTRL_SSBD_SHIFT); return (spec_ctrl & SPEC_CTRL_SSBD) << (TIF_SSBD - SPEC_CTRL_SSBD_SHIFT); } +static inline unsigned long stibp_spec_ctrl_to_tif(u64 spec_ctrl) +{ + BUILD_BUG_ON(TIF_SPEC_IB < SPEC_CTRL_STIBP_SHIFT); + return (spec_ctrl & SPEC_CTRL_STIBP) << (TIF_SPEC_IB - SPEC_CTRL_STIBP_SHIFT); +} + static inline u64 ssbd_tif_to_amd_ls_cfg(u64 tifn) { return (tifn & _TIF_SSBD) ? x86_amd_ls_cfg_ssbd_mask : 0ULL; @@ -70,11 +82,7 @@ extern void speculative_store_bypass_ht_init(void); static inline void speculative_store_bypass_ht_init(void) { } #endif -extern void speculative_store_bypass_update(unsigned long tif); - -static inline void speculative_store_bypass_update_current(void) -{ - speculative_store_bypass_update(current_thread_info()->flags); -} +extern void speculation_ctrl_update(unsigned long tif); +extern void speculation_ctrl_update_current(void); #endif |